ELEMENTS OF PHYSICS I
Physics 221

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CHAPTER 5
Circular motion; gravitation

NEW CONCEPTS

FORMULAS

Centripetal (radial) acceleration:

\begin{displaymath}a_R = {v^2\over r}\end{displaymath}

Newton's law of universal gravitation:

\begin{displaymath}F = G {m_1m_2\over r^2}\end{displaymath}

where $G = 6.67\times 10^{-11}~N\cdot m^2/kg^2$

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